// ******************************************************************
// Copyright � 2015-2018 nventive inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// ******************************************************************
using System;
using System.Collections.Generic;

namespace Uno.Extensions
{
    public static class QueueExtensions
    {
        public static bool Remove<T>(this Queue<T> queue, Func<T, bool> predicate)
        {
            var result = false;
            var allValues = queue.ToArray();
            queue.Clear();
            foreach (var v in allValues)
            {
                if (predicate(v))
                {
                    result = true;
                    continue;
                }
                queue.Enqueue(v);
            }

            return result;
        }

	    public static T DequeueOrDefault<T>(this Queue<T> queue)
	    {
		    return queue.Count > 0
			    ? queue.Dequeue()
			    : default(T);
		}
	}
}